CN100428285C - Wireless sensor system and wireless sensor-equipped bearing device - Google Patents
Wireless sensor system and wireless sensor-equipped bearing device Download PDFInfo
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- CN100428285C CN100428285C CNB2004800269686A CN200480026968A CN100428285C CN 100428285 C CN100428285 C CN 100428285C CN B2004800269686 A CNB2004800269686 A CN B2004800269686A CN 200480026968 A CN200480026968 A CN 200480026968A CN 100428285 C CN100428285 C CN 100428285C
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/008—Identification means, e.g. markings, RFID-tags; Data transfer means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/443—Devices characterised by the use of electric or magnetic means for measuring angular speed mounted in bearings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/443—Devices characterised by the use of electric or magnetic means for measuring angular speed mounted in bearings
- G01P3/446—Devices characterised by the use of electric or magnetic means for measuring angular speed mounted in bearings mounted between two axially spaced rows of rolling elements
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
- F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
- F16C19/186—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement with three raceways provided integrally on parts other than race rings, e.g. third generation hubs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
- F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
- F16C19/187—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement with all four raceways integrated on parts other than race rings, e.g. fourth generation hubs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
- F16C2326/01—Parts of vehicles in general
- F16C2326/02—Wheel hubs or castors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/007—Encoders, e.g. parts with a plurality of alternating magnetic poles
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Rolling Contact Bearings (AREA)
Abstract
There are provided a wireless sensor system which is hardly affected by an external disturbance noise, can improve the reliability of the sensor signal and have a light and compact configuration including a power source system, and is communicable at any time; and a wireless sensor-equipped bearing device having a light and compact configuration. The wireless sensor system includes wireless sensor units (4A, 4B) and a sensor signal receiver (5). The wireless sensor units (4A, 4B) include sensor units (6A, 6B) for detecting an object to be detected, digitization means (7) for digitizing the sensor signal, and sensor signal transmission units (9A, 9B).
Description
Technical field
The present invention relates to send various transducing signals with wireless mode, such as, be arranged at such wireless sensing system such as the detection signal of revolution on the bearing apparatus for wheel of various plant equipment, automobile etc. and adopt the bearing arrangement that has wireless senser of the bearing apparatus for wheel etc. of this system.
Background technology
In automobile, various industrial machines etc.,, be used to detect bearing, other the various detected objects of rotational speed, temperature, vibration etc. of each several part, the occasion of the control of equipment, condition managing etc. by various sensors are set.The output of such sensor generally sends detection signal in wired mode, but has the situation that is difficult to the wiring place that obtains to be fit to.In such occasion, adopt the wireless sensing system that sends detection signal by electromagnetic wave.Transmitter has compact battery.
On the other hand, detecting wheel revolutions by rotation sensor, carry out among the ABS (Anti-lock Brake System) of vehicle braked control, the reduction of the preventing of the accident that causes for the breakage of seeking the sensor wire in the tire housing, assembly cost, people propose to eliminate the lead between wheel and the car body, the wireless mode (TOHKEMY 2002-151090 document) that will send as electromagnetic wave etc. as the detection signal of rotation sensor.In the representative instance of this rotation sensor, adopt multipole rotary generator, the sensor that carries out simultaneously itself generating electricity uses the supply of electric power and revolution to detect with electric power and transmitter, thus, do not power compact conformation (with reference to TOHKEMY 2002-55113 document) to rotation sensor from car body.
In addition, TOHKEMY 2003-146196 document relates in the wheel bearing that has the rotation sensor that carries out the wireless signal transmission, the invention of own diagnostic circuit is set, the power supply of sensor and radio transmitters is a prerequisite with the condition that the generator by while double as rotation sensor carries out, but, also relate to wireless power.
In TOHKEMY 2003-58976 document, propose transducing signal is carried out digitized processing, to its mode that sends.Power supply adopts battery or generator.
Be that battery has the life-span in the wireless sensing system of power supply with above-mentioned battery, must changing battery corresponding to consuming, the life-span management trouble of battery.The problem of environment that also has the Battery disposal followed.
In carrying out the above-mentioned rotation sensor that oneself generates electricity, because wheel rotation is at first generated electricity, so though according to moving as about 10Km/h of the operating space of ABS or above velocity-stabilization ground, but have in occasion, detect unsettled situation near the Ultra-Low Speed that stops.In addition, can't be applied to rotate detected object beyond detecting, such as, the occasion of temperature detection etc.
In addition, in the occasion of wireless power, owing to the efficient of comparing with power supply, the generator of wiring is bad, so must send more electric weight in order to power.But, considering that power supply is bad, sending the occasion of big electric weight at ordinary times continuously, have the problem that the power consumption of entire system increases.
Like this, in wireless sensor system, this stable power guarantee to become problem.
On the other hand, in wireless sensing system, aspect the reliability of system, there is a problem in be interfered the easily influence of clutter of the transducing signal of wireless transmission at present.Such as, in the disclosed scheme of TOHKEMY 2003-146196 document,, have the problem of the interference of above-mentioned transducing signal though obtain power supply at ordinary times in order to carry out wireless power.In addition, the occasion of a plurality of wireless sensing components is being set,, is changing the transducing signal transmission frequency, necessarily requiring to be provided with and the corresponding a plurality of receiving circuits of this frequency at each wireless sensing component in order to discern each wireless sensing component.The electromagnetic wave that wireless power is used is that unmodulated electromagnetic mode is simple.But,,, necessarily require to make frequency different in electromagnetic wave, or make the mutual dispar processing of plane of polarization at power consumption magnetic wave and transducing signal for fear of the electromagnetic air interference that power consumption magnetic wave and transducing signal are used in this occasion.
In the disclosed scheme of TOHKEMY 2003-58976 document,, it is sent because transducing signal is carried out digitized processing, so advantage of the influence that acquisition is difficult to be interfered, but, because power supply adopts battery or generator, so have and the identical problem of above-mentioned each example.
Like this, in wireless sensing system, the reliability of the guaranteeing of power supply, transducing signal becomes problem.
Summary of the invention
The object of the present invention is to provide the influence of its clutter that is difficult to be interfered, the reliability of transducing signal improves, and has power-supply system, lightweight, compact conformation, the bearing arrangement that has wireless senser of the wireless sensing system that no matter when all can communicate by letter and lightweight, compact conformation in addition with this system.
Even another object of the present invention is to provide under the unsettled situation of wireless power, still can obtain stable sensing output, and the bearing arrangement that can seek the wireless sensing system of power saving and have wireless senser lightweight, compact conformation with it.
The wireless sensing system of the 1st scheme of the present invention comprises the detecting means (6A, 6B) that detected object is detected; Transducing signal sending part (9A, 9B), this transducing signal sending part (9A, 9B) sends the transducing signal that this detecting means (6A, 6B) is exported with wireless mode; One or more wireless sensing components (4A, 4B), these one or more wireless sensing components (4A, 4B) have electric power acceptance division (8A, 8B) respectively, and this electric power acceptance division (8A, 8B) receives the action electric power that drives above-mentioned detecting means (6A, 6B) and transducing signal sending part (9A, 9B) with wireless mode; Transducing signal acceptance division (13), this transducing signal acceptance division (13) receives the transducing signal that sends from above-mentioned transducing signal sending part (9A, 9B); Power supply electric power sending part (12), this power supply electric power sending part (12) is with wireless mode, the electric power that will move sends to above-mentioned electric power acceptance division (8A, 8B), in above-mentioned wireless sensing component (4A, 4B), digitized processing mechanism (7) is set, the transducing signal that this digitized processing mechanism (7) is exported above-mentioned detecting means (6A, 6B) carries out digitized processing, and above-mentioned transducing signal sending part (9A, 9B) sends the above-mentioned transducing signal that carries out above-mentioned digitized processing.
According to such scheme, owing to by digitized processing mechanism (7), transducing signal is carried out digitized processing, transmission, so the influence that is difficult to be interfered, the reliability of system improves.In addition, because the electric power acceptance division (8A, 8B) that receives action electric power with wireless mode is set, so needn't be provided as primary element, the generator of power supply of detecting means (6A, 6B) and transducing signal sending part (9A, 9B), can compactness and lightweight ground formation wireless sensing component (4A, 4B).Because battery swap is unwanted, so maintenance is also easy.In addition, different with the occasion that adopts generator, the occasion that is not limited to rotate all can detect at any time.
In the wireless sensing system of above-mentioned the 1st scheme, also can be following scheme, promptly, above-mentioned wireless sensing component (4A, 4B) is a plurality of, and above-mentioned transducing signal acceptance division (13) can receive the transducing signal of a plurality of detecting means (6A, 6B) that send by above-mentioned a plurality of wireless sensing components (4A, 4B).
In the occasion of this scheme, owing to can pass through 1 transducing signal acceptance division (13), receive the transducing signal of a plurality of wireless sensing components (4A, 4B), so form the scheme of the overall simple of wireless sensing system.
In the wireless sensing system of above-mentioned the 1st scheme, scheme that can be following also, that is, above-mentioned power supply electric power sending part (12) is arranged in the transducing signal receiver (5) with above-mentioned transducing signal acceptance division (13).
Power supply electric power sending part (12) and transducing signal acceptance division (13) also can be distinguished separately setting discretely, still, are arranged in the transducing signal receiver (5) by the concentrated area, and the scheme of system is simple.
The wireless sensing system of above-mentioned the 1st scheme also can be following scheme, that is, above-mentioned wireless sensing component (4A, 4B) is for having a plurality of sensors as above-mentioned detecting means (6A, 6B) (6a～6c).(6a～6c) both can detect the detected object of identical type to these a plurality of sensors, also can detect different types of detected object.
In the occasion of this scheme, (transducing signal of 6a～6c) so can detect a plurality of detected objects, forms simple structure, overall compact simultaneously owing to can send a plurality of sensors by 1 transducing signal sending part (9A, 9B).
In the wireless sensing system of above-mentioned the 1st scheme, the sensor that constitutes above-mentioned detecting means (6A, 6B) also can be at least 1 in the pre-pressure sensor of rotation sensor, vibration transducer, temperature sensor, acceleration transducer, load transducer, torque sensor and bearing.
At detected object is the occasion of rotation detection signal, load, torque, acceleration etc., such as, the Spin Control of the equipment of bearing, other various control are set.At detected object is the occasion of the precompressed of temperature, vibration, bearing, carries out fault, condition managing, life-span management of bearing etc.
In addition, in the wireless sensing system of above-mentioned the 1st scheme, one in the above-mentioned detecting means (6A, 6B) has rotation sensor, and this rotation sensor also can be pulse ring (17) and the magnetic sensor (18) of the magnetic resistance type that is provided with according to the mode of facing with this pulse ring.
Because the magnetic sensor of magnetoresistive element type can reduce power consumption by increasing resistance, so be favourable for carrying out wireless power.
In this occasion, above-mentioned rotation sensor is the mechanism of pulsing, and the signal that carries out digitized processing by above-mentioned digitized processing mechanism (7) also can be the signal in the cycle of the above-mentioned pulse of expression.
Be output as the occasion of train of impulses at rotation sensor, the periodic signal by paired pulses carries out digitized processing to be exported, and carries out the digitized processing of transducing signal easily.
In above-mentioned the 1st scheme, 1 in above-mentioned rotation sensor (6A, 6B) is the occasion of rotation sensor, and this rotation sensor also can be the mechanism that produces phase place different 2 or above pulse.In this occasion, the signal that carries out digitized processing by above-mentioned digitized processing mechanism (7) also can be the signal of indicating impulse cycle and sense of rotation.
If be rotated the detection of direction, seek the control of height, in addition, controllable kind increases.In this occasion because in periodic signal, add the signal of expression sense of rotation, so can be with less bit number, transmission rotational speed and direction the two.
In above-mentioned the 1st scheme, also can be following scheme, wherein, as described above, the occasion of a plurality of wireless sensing components (4A, 4B) is set, each wireless sensing component (4A, 4B) not only sends transducing signal by above-mentioned transducing signal sending part (9A, 9B), also sends the identification signal of corresponding wireless sensing component (4A, 4B).
In addition, have occasion, not only send transducing signal, also send the identification number of the corresponding sensor that constitutes detecting means (6A, 6B) as a plurality of sensors of detecting means (6A, 6B) at wireless sensing component (4A, 4B).
Owing to by transducing signal is carried out digitized processing, can send the identification number of each wireless sensing component (4A, 4B) easily, can discern a plurality of wireless sensing components (4A, 4B), so system architecture is simple by the electromagnetic wave of single-frequency.Detecting means (6A, 6B) at corresponding wireless sensing component (4A, 4B) has the occasion of a plurality of sensors, when the identification number of additional this sensor, realizes the identification of corresponding sensor easily really.
In the wireless sensing system of above-mentioned the 1st scheme, above-mentioned transducing signal sending part (9A, 9B) also can pass through frequency spectrum (spectrum) diffusion communication and send transducing signal.
In the occasion that sends signal by frequency spectrum (spectrum) diffusion communication, it is easy with electromagnetic identification to send as the electric power of the continuous wave of no modulating wave, the reliability raising of system.In addition, send transducing signal by frequency spectrum (spectrum) diffusion communication, thus, the transmission of transducing signal and power supply can be adopted the electromagnetic wave of same frequency, in same frequency component of employing such as antennas, seek the reduction of cost.
In the bearing arrangement that has wireless sensing system of above-mentioned the 1st scheme, on bearing, load the wireless sensing component (4A, 4B) of the described wireless sensing system of above-mentioned the 1st scheme.Above-mentioned bearing be such as, foreign side's parts, interior quadrate part spare and Jie are located at the rolling bearing of a plurality of rolling bodys between these inside and outside parts.
Occasion in this scheme, by detecting means (6A, 6B), transducing signal sending part (9A, 9B), electric power acceptance division (8A, 8B) are loaded on the bearing, seeking the intellectuality of bearing handles, in addition, seek the simplification of wiring system, form lightweight, compact structure, simultaneously by digitized processing mechanism (7) is set, the influence that is difficult to be interfered, the reliability of transducing signal improves.
In the bearing arrangement that has wireless sensing system of above-mentioned the 1st scheme, constitute 1 pre-pressure sensor that also can be bearing in the sensor of above-mentioned detecting means (6A, 6B).In this occasion, can monitor the precompressed of bearing, carry out apace the bad reply of the bigger precompressed of influences such as bearing life is handled.
The bearing arrangement that has wireless sensing system of above-mentioned the 1st scheme also can be following bearing apparatus for wheel, wherein, above-mentioned rolling bearing comprises foreign side's parts with many row's orbital planes, have and the interior quadrate part spare of the orbital plane that above-mentioned orbital plane is faced, be situated between and be located at a plurality of rolling bodys between two row's orbital planes of facing, this wheel bearing arrangement rotatably with wheel support on car body.
In this scheme occasion, seek the intellectuality of bearing apparatus for wheel and handle, in addition, eliminate the lead between wheel and the car body, the reliability of seeking transducing signal simultaneously improves the reliability raising of the control that causes, the raising of security.
The wireless sensing system of the 2nd scheme of the present invention comprises the detecting means (6A, 6B) that detects detected object; Transducing signal sending part (9A, 9B), this transducing signal sending part (9A, 9B) sends the transducing signal that this detecting means (6A, 6B) is exported with wireless mode; One or more wireless sensing components (4A, 4B), these one or more wireless sensing components (4A, 4B) have electric power acceptance division (8A, 8B) respectively, and this electric power acceptance division (8A, 8B) receives the action electric power that drives above-mentioned detecting means (6A, 6B) and transducing signal sending part (9A, 9B) with wireless mode; Transducing signal acceptance division (13), this transducing signal acceptance division (13) receives the transducing signal that sends from above-mentioned transducing signal sending part (9A, 9B); Power supply electric power sending part (12), this power supply electric power sending part (12) will move electric power with wireless mode and send to above-mentioned electric power acceptance division (8A, 8B), in above-mentioned wireless sensing component (4A, 4B), electric power storage mechanism (27) is set, the reception electric power of this electric power storage mechanism (27) above-mentioned electric power acceptance division of savings (8A, 8B).Above-mentioned electric power storage mechanism (27) adopts capacitor, accumulator.The transmission of transducing signal and action electric power receives except be the electromagnetic wave, also can be the transmission reception of adopting magnetic coupling, light wave, infrared ray, ultrasound wave etc., can send reception by wireless mode.
According to this scheme, because the electric power acceptance division (8A, 8B) that receives action electric power with wireless mode is set, so needn't be provided as primary element, the generator of power supply of detecting means (6A, 6B) and transducing signal sending part (9A, 9B), can compactness and lightweight ground formation wireless sensing component (4A, 4B).Owing to need not the replacing of battery, so also maintenance easily.In addition, electric power storage mechanism (27) owing to capacitor that the reception electric power of putting aside electric power acceptance division (8A, 8B) is set or accumulator etc., so at ordinary times, the dump power that savings receives by electric power acceptance division (8A, 8B) in electric power storage mechanism (27), when wireless power is unstable, can be used for the driving of detecting means (6A, 6B), transducing signal sending part (9A, 9B) with putting aside electric power in this capacitor or accumulator.Thus, needn't send big electric weight at ordinary times, can reduce the power consumption of wireless sensing system at the instability of wireless power.In the occasion of electric power storage mechanism (27) employing capacitor, adopt the capacitor of capacity with the unsettled degree that can eliminate such wireless power.Even adopting under the situation of accumulator, because the accumulator of the capacitance of storage of the degree that compensates for the instability to wireless power is just enough, so compare with the occasion of employing primary element, overall dimensions reduces, and is in light weight, in addition, also need not to change battery.
The bearing arrangement that has wireless senser of above-mentioned the 2nd scheme is the following bearing arrangement that has sensor, wherein, on rolling bearing, load the wireless sensing system of above-mentioned the 2nd scheme, this rolling bearing has interior quadrate part spare, foreign side's parts and Jie and is located at a plurality of rolling bodys between the inside and outside parts, and the electric power storage mechanism (27) that puts aside the capacitor of reception electric power of above-mentioned electric power acceptance division (8A, 8B) or accumulator etc. is arranged on the above-mentioned rolling bearing.
In this scheme occasion, by on bearing, loading detecting means (6A, 6B), transducing signal sending part (9A, 9B) and electric power acceptance division (8A, 8B), seeking the intellectuality of bearing handles, in addition, seek the simplification of wiring system, form in light weight, compact structure, simultaneously, by the electric power storage mechanism (27) of above-mentioned capacitor or accumulator etc. is set, can guarantee stable power, can reduce the power consumption of wireless power.
In the bearing arrangement that has wireless senser of above-mentioned the 2nd scheme, the sensor also can detect as above-mentioned detected object, at least a kind detected object in the rotation of rolling bearing, temperature, vibration, acceleration, load, torque and the bearing prepressing force.
At detected object is the occasion of rotation detection signal, acceleration, load, torque etc., and the Spin Control of the equipment of bearing, other various controls are set.At detected object is the occasion of the precompressed of temperature, vibration, bearing, carries out fault, situation management, life-span management of bearing etc.
In addition, the bearing arrangement that has wireless senser of above-mentioned the 2nd scheme also can be following bearing apparatus for wheel, wherein, above-mentioned rolling bearing comprises foreign side's parts with many row's orbital planes, have and the interior quadrate part spare of the orbital plane that above-mentioned orbital plane is faced, be situated between and be located at a plurality of rolling bodys between two row's orbital planes of facing, this wheel bearing arrangement rotatably with wheel support on car body.
In the occasion of this scheme, seek the intellectuality of bearing apparatus for wheel and handle, eliminate the lead between wheel and the car body in addition, simultaneously, stably to detecting means (6A, 6B), transducing signal sending part (9A, 9B) power supply, that seeks to control is stable, in addition, the power consumption of wireless power is also less.
Description of drawings
Explanation according to the following preferred embodiment of reference accompanying drawing can be expressly understood the present invention.But embodiment and accompanying drawing are simple diagrams and usefulness are described that it shall not be applied to determines scope of the present invention.Scope of the present invention is determined by accompanying Claim.In the accompanying drawings, the label of the same parts in a plurality of accompanying drawings is represented same part.
Fig. 1 is the block scheme of the conception plans of the wireless sensing system of expression the 1st embodiment of the present invention;
Fig. 2 is the block scheme of the inner structure example of this digitized processing mechanism;
Fig. 3 (A) is the key diagram of example of the rotation sensor of the detecting means in the above-mentioned wireless sensing system, and Fig. 3 (B) is the oscillogram of output pulse, and Fig. 3 (C) is the block scheme of inner structure example of the distortion example of digitized processing mechanism;
Fig. 4 is the longitudinal sectional view of the example of the bearing arrangement of the above-mentioned wireless sensing system of expression employing;
Fig. 5 is the longitudinal sectional view of an example of the bearing apparatus for wheel of the above-mentioned wireless sensing system of expression employing;
Fig. 6 adopts the also longitudinal sectional view of an example of the bearing apparatus for wheel of above-mentioned wireless sensing system for expression;
Fig. 7 is the cut-open view of the another example of the bearing apparatus for wheel of the above-mentioned wireless sensing system of expression employing;
Fig. 8 is the block scheme of the conception plans of the wireless sensing system of expression the 2nd embodiment of the present invention.
Embodiment
According to Fig. 1, the wireless sensing system of the 1st embodiment of the present invention is described.This wireless sensing system comprises a plurality of wireless sensing component 4A, 4B; Transducing signal receiver 5, this transducing signal receiver 5 is powered to this a plurality of wireless sensing component 4A, 4B with wireless mode, and receives each transducing signal.The number of wireless sensing component has no particular limits, and both can be 1, also can be 3 or more than, and Fig. 1 represents 2 occasion.
Each wireless sensing component 4A, 4B comprise detecting means 6A, the 6B that respectively detected object is detected; Digitized processing mechanism 7, this digitized processing mechanism 7 is transformed to digital signal with the transducing signal that this detecting means 6A, 6B are exported; Transducing signal sending part 9A, 9B, this transducing signal sending part 9A, 9B send the transducing signal that has carried out above-mentioned digitized processing with wireless mode; Reception is with electric power acceptance division 8A, the 8B of the driving electric of wireless mode transmission; Power circuit 10.
Detecting means 6A, 6B can be made of a sensor respectively, also can have a plurality of sensors respectively.The sensor that constitutes detecting means 6A, 6B is such as the pre-pressure sensor etc. that is the precompressed of rotation sensor, acceleration transducer, temperature sensor, vibration transducer, load transducer, torque sensor, detection bearing.
Between transducing signal sending part 9A, 9B and the transducing signal acceptance division 13 and the transmission between power supply electric power sending part 12 and action electric power acceptance division 8A, the 8B receive and both can be undertaken by electromagnetic wave, also can be undertaken, also can be undertaken by the magnetic coupling mode by light wave, infrared ray, ultrasound wave.
Power supply electric power sending part 12 such as, undertaken by electromagnetic wave as the continuous wave of no modulating wave.Action electric power acceptance division 8A, 8B are made of synchronizing circuit, detection rectification circuit etc. in the occasion of carrying out wireless power by electromagnetic wave.
The frequency ratio of carrying out the transducing signal of wireless transmission and power supply electric power as, be different frequency mutually, also be mutual different frequency according to each transducing signals of a plurality of settings.Here, the frequency of power supply electric power is represented that by f1 the frequency of each transducing signal is represented by f2, f3.Transducing signal also can be identical frequency with the frequency of power supply electric power, in this occasion, as described later, by frequency spectrum (spectrum) diffusion communication, sends transducing signal.
The simulating signal that data switching part 7b will import is transformed to digital signal.
Signal processing part 7c is provided with the occasion of a plurality of wireless sensing component 4A, 4B at shared relatively transducing signal acceptance division 13 (Fig. 1), additional identification number at each wireless sensing component 4A, 4B.At wireless sensing component is 1 occasion, need not identification number.In addition, detecting means 6A, the 6B of signal processing part 7c in above-mentioned wireless sensing component 4A, 4B has the occasion of a plurality of sensor 6a～6c, the identification number of each sensor 6a～6c of additional identification.These wireless sensing component identification numbers and sensor identification number are additional in the transducing signal that is sent.Signal processing part 7c also can add the tediously long bit of error correction symbol etc.
The signal that will carry out digitized processing by this digitized processing mechanism 7 is from transducing signal sending part 9A, 9B, and frequency f 1 according to the rules, the electromagnetic wave of f2 etc. carry out wireless transmission.This sends as described above, except being the electromagnetic wave, also can be undertaken by light wave, infrared ray, ultrasound wave or magnetic-coupled mode.
The transmission of transducing signal sending part 9A, 9B such as, undertaken by frequency spectrum (spectrum) diffusion communication.This mode adopts frequency jitter mode, direct diffusion way etc.
But transducing signal sending part 9A, 9B be timesharing ground also, sends successively at each wireless sensing component 4A, 4B.In addition, also the communication request sending part (not shown) of request instruction from be arranged at transducing signal receiver 5 of data communication can be exported to wireless sensing component 4A, 4B, the wireless sensing component 4A, the 4B that have received this instruction send transducing signal.Like this, the occasion of timesharing, request instruction even under the identical situation of the frequency that sends from each wireless sensing component 4A, 4B, still can communicate under the situation of air interference not having.In addition, if the additional above-mentioned identification number of each wireless sensing component 4A, 4B sends it, then can discern the signal of a plurality of wireless sensing component 4A, 4B.
Owing to interference, the interference of frequency spectrum (spectrum) diffusion communication are stronger, so, still can guarantee sufficient reliability even send under the situation of the electric wave of using the identical frequency band of electromagnetic wave at the electric power of employing as the continuous wave of no modulating wave.By adopting the electromagnetic wave of identical frequency band, can be in electric power acceptance division 8A, 8B and transducing signal sending part 9A, 9B, the parts at antenna etc. adopt same high-frequency unit, like this, can reduce component costs.
In addition, also can be following scheme, wherein, in each wireless sensing component 4A, 4B, determine that transducing signal sends and use electromagnetic frequency, the transducing signal acceptance division 13 of transducing signal receiver 5 to have and the corresponding acceptance division (not shown) separately of the natural frequency of each wireless sensing component 4A, 4B.
Transducing signal sending part 9A, 9B also can be following form, wherein, carry out the transmission of transducing signal by the mode of the transmission ripple being carried out the digital modulation of ASK (Amplitude Shift Keying), FSK (Frequency ShiftKeying), PSK (Phase Shift Keying) or QPSK (Quadrature PSK) etc.
If adopt the wireless sensing system of this scheme, because in each wireless sensing component 4A, 4B, supply with driving electric with wireless mode, so needn't be provided as primary element, the generator of power supply of detecting means 6A, 6B, transducing signal sending part 9A, 9B, can compactness and lightweight ground constitutes wireless sensing component 4A, 4B.Owing to need not to change battery, so also maintenance easily.In addition, different with generating, can communicate at ordinary times.
In addition,, it is sent owing to carry out digitized processing by 7 pairs of transducing signals of digitized processing mechanism, the influence that is difficult to be interfered, the reliability of system improves.Owing to, can send the identification number of each wireless sensing component 4A, 4B easily, can discern a plurality of wireless sensing component 4A, 4B by the electromagnetic wave of single-frequency, so system forms simply by transducing signal is carried out digitized processing.Detecting means 6 at corresponding wireless sensing component 4A, 4B has the occasion of a plurality of sensor 6a～6c, when the identification number of additional this sensor 6a～6c, and also easy identification sensor 6a～6c.
By frequency spectrum (spectrum) diffusion way, send the occasion of the transducing signal that has carried out digitized processing, the electric power of the continuous wave of the no modulating wave of identification conduct sends and uses electromagnetic wave easily, and the reliability of system improves.In addition, send transducing signal by frequency spectrum (spectrum) diffusion way, thus, the transmission of transducing signal and power supply can be adopted the electric wave of identical frequency band, by the shared reduction of seeking cost of parts.
Below according to Fig. 4, an example of the bearing arrangement of the wireless senser that has the wireless sensing system that adopts the 1st embodiment is described.Load wireless sensing component 4A, 4B respectively on a plurality of bearings 51,52,1 transducing signal receiver 5 is with wireless mode, in each wireless sensing component 4A, 4B, powers and the reception of transducing signal is handled.Above-mentioned a plurality of rolling bearing 51,52 is arranged on the each several part of plant equipment 53.Plant equipment 53 is such as, the pipeline of roller path, belt conveyor etc., and the turning axle 59 that constitutes the axle that transports roller or belt-type drive roller etc. rotatably is supported on the above-mentioned bearing 51,52.This bearing 51,52 is a rolling bearing, and between inner ring 54 and outer ring 55, being situated between is provided with rolling body 56, and seal 58 is set.Each rolling body 56 keeps by retainer 57.Above-mentioned inner ring 54 and outer ring 55 constitute the interior quadrate part spare described in the technical scheme and foreign side's parts respectively.Transducing signal receiver 5 is arranged at the position of leaving with bearing 51,52.
The detecting means 6A that is arranged at 1 wireless sensing component 4A among wireless sensing component 4A, the 4B on each bearing 51,52 is a rotation sensor, the detecting means 6B that is arranged at the wireless sensing component 4B on another bearing 52 is for detecting the sensor of rotation detected object in addition, such as, be pre-pressure sensor of temperature sensor, vibration transducer, acceleration transducer, load transducer, torque sensor, bearing etc.By these sensors are installed, detect the state of bearing 51,52, can be used for the fault diagnosis, factory's line supervision of bearing 51,52 etc.
To each wireless sensing component 4A, 4B additional identification number, behind additional this identification number, carry out signal and send.In detecting means 6A, the 6B of each wireless sensing component 4A, 4B, have the occasion of a plurality of sensors, the identification number of additional each sensor sends transducing signal.
The detecting means 6A that constitutes rotation sensor is made of pulse ring 17, the magnetic sensor 18 installed according to the mode relative with it.This pulse ring 17 for magnetic pole along the circumferential direction side by side, multipole magnetized magnet or the magnetic ring etc. of the jog of gear-like is set is along circumferentially having periodic variation.The circumferential periodic magnetic that magnetic sensor 18 detects pulse ring 17 changes, and detects the relative rotation of inner ring 54 and outer ring 55, the output rotating signal.This rotating signal is a train of impulses, by digitized processing mechanism 7 (Fig. 1), the cycle data of this train of impulses is carried out digitized processing, to its transmission.Magnetic sensor 18 is a magnetic field sensor, except magnetoresistive element type sensor (being called " MR sensor "), also can adopt the active magnetic sensor of Hall element type sensor, flux gate type magnetic sensor, MI sensor etc.
Best, above-mentioned magnetic sensor 18 is the magnetoresistive element type.For this magnetoresistive element type sensor, by increasing resistance, can reduce power consumption, be favourable for carrying out wireless power.
If adopt this bearing arrangement that has wireless senser, then by detecting means 6A, 6B, seek the intellectuality of bearing 51,52 and handle, in addition,, seek the simplification of wiring system by the wireless processing of transducing signal and power supply.In addition, because transducing signal is carried out digitized processing, it is sent, so the influence that is difficult to be interfered, the reliability of system improves.
Fig. 5 represents that the wireless sensing system of the 1st embodiment is used for the embodiment of the bearing apparatus for wheel of automobile.This bearing apparatus for wheel 33 comprises foreign side's parts 1 with many row's orbital planes, have and above-mentioned orbital plane in the face of the interior quadrate part spare 2 of orbital plane, be situated between and be located at a plurality of rolling bodys 3 between two row's orbital planes of facing, this bearing apparatus for wheel 33 rotatably with wheel support on car body.The bearing apparatus for wheel 33 of this figure was the 4th generation, and interior quadrate part spare 2 is made of the outer ring 15a of wheel hub circle 2A and constant velocity joint 15, and on the outer ring 15a of this wheel hub circle 2A and constant velocity joint, quadrate part spare 2 sides respectively arranges orbital plane in forming.
On foreign side's parts 1 of this bearing apparatus for wheel 33,1 wireless sensing component 4A is set.Another wireless sensing component 4B among Fig. 1 both can omit, and also can be independent of bearing apparatus for wheel 33, such as, be arranged on the wheel in order to detect tire air pressure.
Because rotation sensor 6Aa detects rotation by pulse ring 17 and magnetic sensor 18, by the wireless mode power supply, so it can detect rotation, until 0 speed, can be used for ABS (Anti-lock Braking System) (antilock braking) system, traction control etc., can seek the height control of automobile.By detecting sense of rotation, can be used for automobile slope road and stop anti-skidding control, such as, the occasion that retreats detection, its opposite corresponding control of detection etc. during with vertical motion.
By another sensor 22, also carry out the rotation detection in addition of load transducer, temperature sensor etc., thus, can carry out the intellectuality of bearing and handle, can be used for the fault diagnosis of bearing, the control of various automobile.
Like this, the occasion that is used for bearing apparatus for wheel 33, seeking the intellectuality of this bearing apparatus for wheel 33 handles, in addition, by wireless transmission and the wireless power that adopts transducing signal simultaneously, then eliminate the lead between wheel and the car body,, carry out the higher automobile control of reliability simultaneously by the digitized processing of transducing signal.
Fig. 6 is used for the example of the bearing apparatus for wheel 33 of another form for the wireless sensing system of expression the 1st embodiment.This bearing apparatus for wheel 33 was the 3rd generation, and interior quadrate part spare 2 is by wheel hub circle 2A, constitute with the chimeric inner ring 2B of the periphery of one end, and in the periphery of wheel hub circle 2A and inner ring 2B, quadrate part spare 2 sides respectively arranges orbital plane in forming.By the inside that the axial region that will be arranged on the 15a of outer ring inserts wheel hub circle 2A, constant velocity joint 15 is connected with wheel hub circle 2A by nut.
Fig. 7 represents the wireless sensing system of the 1st embodiment is used for and the example on the bearing apparatus for wheel 33 of a form.The bearing that the engaged wheel that this bearing apparatus for wheel 33 was the 3rd generation is used.In this example, wireless sensing component 4A is installed on the lid 25 that covers the bearing end.This wireless sensing component 4A comprises as detecting means 6A, the rotation sensor 6Aa that is made of pulse ring 17 and magnetic sensor 18.Front end with detecting means 6A of magnetic sensor 18 inserts and to be opened in the hole of covering in 25, and circuit box 24 is arranged at and covers on 25 the outside.The structure of other of present embodiment is identical with example shown in Figure 6.The ca(u)lk portion 100 that inner ring 2B forms by the end ca(u)lk with wheel hub circle 2A, 2A is connected with the wheel hub circle.
Fig. 8 is the wireless sensing system of the 2nd embodiment of the present invention.The wireless sensing system of the 2nd embodiment is not provided with the digitized processing mechanism 7 of the 1st embodiment.In addition, replace the power circuit 10 of the 1st embodiment, setting has reception with the electric power acceptance division 8A of the driving electric of wireless mode transmission, the power supply unit 20 of 8B.Other structure is identical with the 1st embodiment.
If adopt the wireless sensing system of this structure, because the electric power storage mechanism 27 of the reception electric power of savings electric power acceptance division 8A, 8B is set, so at ordinary times, promptly, when wireless power stable, put aside in savings mechanism 27 by the dump power that electric power acceptance division 8A, 8B receive, when wireless power unstable, put aside the driving that electric power in savings mechanism 7 is used for detecting means 6A, 6B, transducing signal sending part 9A, 9B.Thus, needn't from power supply sending part 12, send big electric weight, can reduce the power consumption of wireless sensing system at the instability of wireless power at ordinary times.In addition, because a plurality of relatively wireless sensing component 4A, 4B carry out the reception of wireless power supply and wireless sensing signal from shared transducing signal receiver 5, so form the scheme of the overall simple of wireless sensing system.
The bearing that the wireless sensing system of the 2nd embodiment can be used for above-mentioned Fig. 4 forms the bearing arrangement that has wireless senser.
If adopt this to have the bearing arrangement of wireless senser, seek the intellectuality of bearing 51,52 handles by detecting means 6A, 6B, in addition, wireless processing by transducing signal and power supply, seek the simplification of wiring system, simultaneously, by the electric power storage mechanism 27 of capacitor, accumulator etc. is set, can guarantee stable power.Thus, needn't send big electric weight at ordinary times, can reduce the power consumption of wireless sensing system at the bad occasion of wireless power.
In addition, the wireless sensing system of the 2nd embodiment can be used for the wheel bearing of above-mentioned Fig. 5, form the wheel bearing arrangement that has wireless senser.
Like this, the occasion that is used for bearing apparatus for wheel 33 is sought the intellectuality of bearing apparatus for wheel 33 and is handled, in addition, eliminate the lead between wheel and the car body on one side, image pattern 8 is such on one side, electric power storage mechanism 27 is set, thus, can stably will power to detecting means 6A, transducing signal sending part 9A, that seeks to control is stable, and the power consumption of wireless power is little.That is, needn't send big electric weight at ordinary times, can reduce the power consumption of wireless sensing system at the unsettled occasion of wireless power.Consequently, fuel cost improves thereupon.
In addition, the wireless sensing system of the 2nd embodiment can be used for the wheel bearing of above-mentioned Fig. 6 and Fig. 7, have the wheel bearing arrangement of wireless senser.
The present invention can be at bearing apparatus for wheel, various industrial machine, industrial machinery, transport in machinery etc., is used for the bearing of each several part, other the radio detection of detected object at position.
Claims (15)
1. wireless sensing system, this wireless sensing system comprises the detecting means that detected object is detected; The transducing signal sending part, this transducing signal sending part sends the transducing signal that this detecting means is exported with wireless mode; A plurality of wireless sensing components, these a plurality of wireless sensing components have the electric power acceptance division respectively, and this electric power acceptance division receives the action electric power that drives above-mentioned detecting means and transducing signal sending part with wireless mode; The transducing signal acceptance division, this transducing signal acceptance division receives the transducing signal that sends from above-mentioned transducing signal sending part; A power supply electric power sending part, this power supply electric power sending part is with wireless mode, the electric power that will move sends to above-mentioned electric power acceptance division, digitized processing mechanism is set in above-mentioned wireless sensing component, the transducing signal that this digitized processing mechanism exports above-mentioned detecting means carries out digitized processing, and above-mentioned transducing signal sending part sends the above-mentioned transducing signal that carries out digitized processing;
One in the above-mentioned detecting means has rotation sensor, and this rotation sensor is the magnetic sensor of pulse ring and the magnetic resistance type that is provided with according to the mode relative with this pulse ring,
Above-mentioned rotation sensor is for producing the mechanism of phase place different 2 or above pulse, and the signal that carries out digitized processing by above-mentioned digitized processing mechanism is the signal of indicating impulse cycle and sense of rotation,
Above-mentioned digitized processing mechanism has the sense of rotation test section.
2. wireless sensing system according to claim 1 is characterized in that above-mentioned wireless sensing component is a plurality of, and above-mentioned transducing signal acceptance division can receive the transducing signal of a plurality of detecting means that send by above-mentioned a plurality of wireless sensing components.
3. wireless sensing system according to claim 1 is characterized in that above-mentioned power supply electric power sending part is arranged in the transducing signal receiver with above-mentioned transducing signal acceptance division.
4. wireless sensing system according to claim 1 is characterized in that above-mentioned wireless sensing component has a plurality of sensors that constitute above-mentioned detecting means.
5. wireless sensing system according to claim 1, the sensor that it is characterized in that constituting above-mentioned detecting means are at least 1 in the pre-pressure sensor of rotation sensor, acceleration transducer, vibration transducer, temperature sensor, load transducer, torque sensor, bearing.
6. wireless sensing system according to claim 2 is characterized in that each wireless sensing component by above-mentioned transducing signal sending part, not only sends transducing signal, also sends the identification signal of corresponding wireless sensing component.
7. wireless sensing system according to claim 4 is characterized in that wireless sensing component not only sends transducing signal, also sends the identification number of the corresponding sensor that constitutes detecting means.
8. wireless sensing system according to claim 1 is characterized in that above-mentioned transducing signal sending part by frequency spectrum diffusion communication, sends transducing signal.
9. a bearing arrangement that has wireless sensing system has in the bearing arrangement of wireless sensing system at this, loads the wireless sensing component of the described wireless sensing system of claim 1 on bearing.
10. the bearing arrangement that has wireless sensing system according to claim 9, of sensor who it is characterized in that constituting above-mentioned detecting means is the pre-pressure sensor of bearing.
11. the bearing arrangement that has wireless sensing system according to claim 9, it is characterized in that this bearing arrangement is a bearing apparatus for wheel, wherein, above-mentioned rolling bearing is to comprise foreign side's parts with many row's orbital planes, have and the interior quadrate part spare of the orbital plane that above-mentioned orbital plane is faced, be situated between and be located at a plurality of rolling bodys between two row's orbital planes of facing, this wheel bearing arrangement rotatably with wheel support on car body.
12. a wireless sensing system, this wireless sensing system comprises the detecting means that detected object is detected; The transducing signal sending part, this transducing signal sending part sends the transducing signal that this detecting means is exported with wireless mode; One or more wireless sensing components, these one or more wireless sensing components have the electric power acceptance division respectively, and this electric power acceptance division receives the action electric power that drives above-mentioned detecting means and transducing signal sending part with wireless mode; The transducing signal acceptance division, this transducing signal acceptance division receives the transducing signal that sends from above-mentioned transducing signal sending part; Power supply electric power sending part, this power supply electric power sending part is with wireless mode, the electric power that will move sends to above-mentioned electric power acceptance division, above-mentioned wireless sensing system is loaded on the rolling bearing, this rolling bearing has interior quadrate part spare, foreign side's parts and is situated between is located at a plurality of rolling bodys between quadrate part spare and foreign side's parts in this, in above-mentioned rolling bearing, the electric power storage mechanism of capacitor or accumulator is set, this electric power storage mechanism puts aside dump power in the reception electric power of above-mentioned electric power acceptance division.
13. a bearing arrangement that has wireless senser, this bearing arrangement that has wireless senser loads the described wireless sensing system of claim 12.
14. the bearing arrangement that has wireless senser according to claim 13 is characterized in that the sensor detects at least a kind detected object in rotation as the rolling bearing of above-mentioned detected object, temperature, vibration, acceleration, load, torque, the bearing prepressing force.
15. the bearing arrangement that has wireless senser according to claim 13, it is characterized in that it is a bearing apparatus for wheel, above-mentioned rolling bearing comprises foreign side's parts with many row's orbital planes, have and the interior quadrate part spare of the orbital plane that above-mentioned orbital plane is faced, be situated between and be located at a plurality of rolling bodys between two row's orbital planes of facing, this wheel bearing arrangement rotatably with wheel support on car body.
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| JP2003327699A JP2005092704A (en) | 2003-09-19 | 2003-09-19 | Wireless sensor system and bearing device with wireless sensor |
| JP327699/2003 | 2003-09-19 | ||
| JP327700/2003 | 2003-09-19 |
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| CN1853207A CN1853207A (en) | 2006-10-25 |
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| CNB2004800269686A Expired - Fee Related CN100428285C (en) | 2003-09-19 | 2004-09-14 | Wireless sensor system and wireless sensor-equipped bearing device |
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| US (1) | US7612665B2 (en) |
| JP (1) | JP2005092704A (en) |
| CN (1) | CN100428285C (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN1853207A (en) | 2006-10-25 |
| JP2005092704A (en) | 2005-04-07 |
| US20070030162A1 (en) | 2007-02-08 |
| US7612665B2 (en) | 2009-11-03 |
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